Texas Instruments SN74HC646DWR

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series 74HC
Packaging Marketplace | Cut Tape (CT)
Part Status Active
Logic Type Transceiver, Non-Inverting
Number of Elements 1
Number of Bits per Element 8
Input Type -
Output Type 3-State
Current - Output High, Low 7.8mA, 7.8mA
Voltage - Supply 2V ~ 6V
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package 24-SOIC
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The SN74HC646DWR from Texas Instruments is a versatile non-inverting transceiver from the 74HC logic family. It features one channel with 3-State outputs, capable of sourcing or sinking 7.8mA. Operating from a wide 2V to 6V supply, this 24-pin SOIC device is ideal for level shifting and bidirectional data transfer in mixed-voltage systems. Its low power consumption and wide temperature range (-40°C to 85°C) make it suitable for portable, industrial, and automotive applications.

  • Wide 2V to 6V Supply Range: Compatible with 3.3V and 5V systems, simplifying design.
  • Bidirectional Operation: Facilitates data flow in both directions on a single bus.
  • Low Power CMOS: Ideal for battery-powered applications.
  • 3-State Outputs: Allows multiple devices to share the bus safely.

Mixed-Voltage Level Shifting

Use the SN74HC646DWR to interface between 3.3V and 5V systems, thanks to its 2V to 6V operating range.

Bidirectional Data Bus

Implement a bidirectional data bus between two microcontrollers or a microcontroller and memory, with direction controlled by the DIR pin.

Low-Power Portable Devices

In battery-powered equipment, buffer data lines while consuming minimal power, characteristic of CMOS logic.

Industrial Sensor Networks

Buffer communication lines in industrial sensor networks, operating reliably over a wide temperature range.

FPGA/CPLD Interfacing

Connect FPGAs operating at 3.3V to 5V peripherals, providing a robust buffered interface.

Automotive Electronics

Use in automotive ECUs for data transfer between modules, benefiting from its wide voltage tolerance and temperature range.

Q: What is the logic family of the SN74HC646DWR?
A: It belongs to the 74HC family, offering high-speed CMOS with wide voltage operation.
Q: What is the function of this IC?
A: It is a non-inverting transceiver with 1 channel, supporting bidirectional data flow.
Q: What is the output type?
A: It features 3-State outputs for bus sharing.
Q: What is the voltage range?
A: It operates from 2V to 6V, making it versatile for various logic levels.
Q: What is the package?
A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
Q: What is the output current?
A: It can source and sink 7.8mA.
Base Product Number : SN74HC646
24-SOIC 2V-6V 3-State 74HC Bidirectional Level Shifting Logic IC Transceiver
Q: What is the logic family of the SN74HC646DWR?
A: It belongs to the 74HC family, offering high-speed CMOS with wide voltage operation.
Q: What is the function of this IC?
A: It is a non-inverting transceiver with 1 channel, supporting bidirectional data flow.
Q: What is the output type?
A: It features 3-State outputs for bus sharing.
Q: What is the voltage range?
A: It operates from 2V to 6V, making it versatile for various logic levels.
Q: What is the package?
A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
Q: What is the output current?
A: It can source and sink 7.8mA.